Abstract
The problem of electromagnetic compatibility of wired telecommunications is becoming more drastic every year. Effective protection of telecommunications equipment from external electromagnetic fields is becoming increasingly pertinent and largely determines the reliability and quality of telecommunications services provided by operator companies. In modern fixed broadband access networks, LAN cables are used in a massive way, circuits of which must have high noise immunity from both mutual and external electromagnetic influences. The theoretical aspects of determining the short-term electrical strength of a solid polyethylene insulation are considered, on the basis of which the conduct of some experimental studies of breakdown voltages on short cable segments and their recalculation using statistical methods for a given length are justified. The article contains the results of studying the electrical strength of multi-pair LAN cables of category 5e produced by Samara Cable Company JSC.
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